beginning python from novice to professional second edition 2008 pdf

... like a stack of plates. You can put plates on top, and you can remove plates from the top. The last one you put into the stack is the first one to be removed. (This principle is called last-in, ... you want to format more than... same way, but returns an iterator instead of a list: >>> it = d.iteritems() >>> it >>> list(it) # Convert the iterator to a list [('url', 'http://www.python.org'), ... would be to use a deque from the collections module. See Chapter 10 for more information. remove The remove method is used to remove the first occurrence of a value: >>> x = ['to',

Ngày tải lên: 12/08/2014, 10:21

... this chapter, you learn how to group statements into functions, which enables you to tell the computer how to do something, and to tell it only once. You won’t need to give it the same detailed ... “Why Would I Want to Modify My Parameters?” earlier in this chapter), you can store only one name at a time It would be nice to be able to store more names, like this: >>> store(data, name1, ... that stores names and that allows you to look up people by their first, middle, or last names. You might use a data structure like this: storage = {} storage['first'] = {} storage['middle']

Ngày tải lên: 12/08/2014, 10:21

... Generators Generators (also... it’s time to put it to work In this section, you see how to use generators to solve a classic programming problem Generators and Backtracking Generators ... basis of the iterator protocol The Iterator Protocol To iterate... use an iterator (or an iterable object) instead One useful example of this is explicitly converting an iterator to a list using ... require an object to belong to a cer- tain class or to implement a certain interface, Python often simply requires it to follow some given protocol. So, to be a sequence, all you have to do is follow

Ngày tải lên: 12/08/2014, 10:21

... title="Simple Editor") loadButton = wx.Button(win, label='Open') saveButton = wx.Button(win, label='Save') win.Show() app.MainLoop()... (added to other mode) '+' Read/write mode (added to other ... Application To demonstrate using wxPython, I will show you how to build a simple GUI application Your task is to write a basic program that enables you to edit text files We aren’t going to ... dollar sign to indicate that I want the pattern to match the entire line, all the way to the end. •I use an if statement to make sure that I did in fact match something before I try to extract

Ngày tải lên: 12/08/2014, 10:21

... function from the same module. Listing 14-8. A Simple Server Using Twisted from twisted.internet import reactor from twisted.internet.protocol import Protocol, Factory class SimpleLogger(Protocol): ... Improved Logging Server, Using the LineReceiver Protocol from twisted.internet import reactor from twisted.internet.protocol import Factory from twisted.protocols.basic import LineReceiver class SimpleLogger(LineReceiver): ... Input to CGI... configure, earlier Now Apache knows where to find mod_python, but it has no reason to use it—you need to tell it when to do so To do that, you must add some lines to

Ngày tải lên: 12/08/2014, 10:21

... install_lib copying build/lib/hello.py -> /path/to/python/lib/python2.5/site-packages byte-compiling /path/to/python/lib/python2.5/site-packages/hello.py to hello.pyc 386 CHAPTER 18 ■ PACKAGING YOUR ... and effort into the prototype. It is probably better to refactor and modify that prototype into a more functional system, for several reasons. One common problem that can occur is “second system ... useful to be able to find out exactly how, say, the iter function works, but even more impor- tant is the ability to easily create a prototype of the program you are about to write, just to see

Ngày tải lên: 12/08/2014, 10:21

... assigning to its attributes (top, bottom, left, right, topleft, topright, bottomleft, bottomright, size, width, height, center, centerx, centery, midleft, midright, midtop, and midbottom) or calling ... history = history + [self.url] if len(history) >= MAX_HISTORY_LENGTH: raise return self._broadcast(query, history) def hello(self, other): """ Used to introduce the Node to ... history = history + [self.url] if len(history) >= MAX_HISTORY_LENGTH: return FAIL, EMPTY return self._broadcast(query, history) def hello(self, other): """ Used to introduce

Ngày tải lên: 12/08/2014, 10:21

... Planet Python (http://planetpython.org) and The Daily Python-URL (http://pythonware.com/daily). Toolkit URL Tkinter http://python.org/topics/tkinter/doc.html wxPython http://www.wxpython.org PythonWin ... 473 automatic checkers limits to capabilities of, 361 PyChecker/PyLint tools, 359–362, 364 collect_incoming_data method, 473, 475 automatic refactoring tool ( 2to3 ), 599 found_terminator method, ... generator comprehension and, 196 inserting elements, 42 using, 139 inserting object into, 45 list constructor making lists from iterators, 194 making lists from iterators, 194 making lists from

Ngày tải lên: 12/08/2014, 10:21

... 3.2 Dave Minter and Jeff Linwood Beginning Hibernate From Novice to Professional 6935fm_final.qxd 8/2/06 9:44 PM Page i B eginning Hibernate: From Novice to Professional Copyright © 2006 by ... Jeff Linwood Beginning Hibernate From Novice to Professional CYAN MAGENTA YELLOW BLACK PANTONE 123 CV ISBN 1-59059-693-5 9 781590 596937 53999 6 89253 59693 7 Jeff Linwood, coauthor of Professional ... ™ DEVELOPER Beginning Hibernate: From Novice to Professional Dear Reader, Hibernate lets you save normal Java™ objects into a relational database, and retrieve them without having to write a line

Ngày tải lên: 09/08/2014, 14:20

... Path to the hibernate- tools install directory hibernate. tools.home= /hibernate/ hibernate-tools-3.1 # Path to hibernate- tools.jar relative to hibernate. tools.home hibernate. tools.path=/plugins/org ... eclipse_3.1.0/lib/tools # Path to the HSQL DB install directory hsql.home=/hsqldb/hsqldb-1.8.0 .2 Aside from the configuration settings, the only oddity... directory to contain these The path to the ... is used to batch together mutually dependent Hibernate operations, allowing them to be completed or rolled back atomically, and to isolate operations from external changes to the database

Ngày tải lên: 09/08/2014, 14:20

... to the database using SQL From a developer’s perspective, you do not have to do any work to store these changes, unless you would like to force Hibernate to commit... SessionFactory—a ... possible outcomes in the underlying table String customer = getCustomerFromHibernate("dcminter"); customer.setAge(10); saveCustomerToHibernate(customer); For example, let’s say the table originally ... chapter, we’ve shown how to acquire the Hibernate tools, how to create and run the example from Chapter 1, and how to create a slightly larger application from scratch, driving the...

Ngày tải lên: 09/08/2014, 14:20

... QL query to be stored in the annotations OneToMany M and F Allows a one -to- many association to be defined between entities OneToOne M and F Allows a one -to- one association to be defined ... from one-to-one to many-to-one by removing the unique constraint. Figure 5-6 shows this type of relationship. The One-to-Many and Many-to-One Association A one-to-many association (or from the ... Annotations Prior to annotations, the only way to create mappings was through XML files—although tools from Hibernate and third-party projects allowed part or all of these to be generated from Java source

Ngày tải lên: 09/08/2014, 14:20

... ame i s the name of the discriminator column. discriminatorType is the type of value to be stored in the column as selected from the javax.persistence.DiscriminatorType enumeration of STRING, CHAR, ... filters to be declared. Formula MF Allo ws an SQL for mula to be used in place of v alues drawn from a column. GenericGenerator Pk, T, M, and F Allows a Hibernate-specific generator to be used ... @GenericGenerator annotation to fill the void The attributes that can be supplied to the annotation are as follows: name is mandatory, and is used to identify the generic generator... allows

Ngày tải lên: 09/08/2014, 14:20

... composite-map-key | map-key-many-to-many | index | composite-index | index-many-to-many | index-many-to-any), (element | one-to-many | many-to-many | composite-element | many-to-any), loader?, sql-insert?, ... reassuring that in order to make navigation possible directly from the Advert to its associated Picture, we can in fact use a one -to- one mapping entry We need to be able to navigate in this ... can be started, committed to write data to the database, or rolled back to remove all changes from the beginning onward (usually as the result of an error) To achieve this, you obtain

Ngày tải lên: 09/08/2014, 14:20

... simple query. The request has to be sent (usually over the network) to the server. The database server may have to compile the SQL into a query plan. The query plan has to be run and is limited largely ... you will have to use frequently, but it is useful should you need to turn to your database administrators for help in tuning your Hibernate application The easiest way to see the SQL ... from many -to- one First, we will demonstrate how to use one -to- many... crit.add(Example.create(supplier)); List results = crit.list(); When Hibernate translates our Example object into

Ngày tải lên: 09/08/2014, 14:20

... need to acquire the value to be totaled from every row! Taking the client example from the “Putting SQL into a Mapping” section, we could replace the SQL logic in the tag with a call to ... interceptor at a global level config.setInterceptor(new BookingInterceptor()); SessionFactory factory = config.configure().buildSessionFactory(); Session... p_streetname varchar(1 28) , p_town varchar(32), ... the tag with a call to a suitable stored procedure The callable attribute is set to true to indicate that Hibernate needs to issue a call to a stored procedure instead of a standard

Ngày tải lên: 09/08/2014, 14:20

... Wireless Toolkit includes a document called “J2ME Wireless Toolkit Basic Customization Guide.” This guide describes how to add support for any obfuscator to the toolkit. Obfuscators tend to be ... adapter code to use other obfuscators. If you’re using the 2.2 version of the toolkit, you just need to download ProGuard and copy the proguard.jar file into the toolkit’s bin directory. Then ... regular contributor to printed magazines and e-zines. His book credits include Beginning JavaServer Pages; Professional Apache Tomcat 5; Pro JSP, Third Edition; Early Adopter JXTA; Professional...

Ngày tải lên: 17/02/2014, 23:20

... form into symbolic variables, encouraging exportation into other systems. To accomplish this, he opted to continue development in C code rather than Perl. Ongoing additions to the PHP toolset ... generated from DocBook- based master files, which can be retrieved from the PHP project’s CVS server should you wish to convert to another format. The documentation is located in the directory manual ... Summary 626  Chapter 32: Stored Routines 627 Should You Use Stored Routines? 627 Stored Routine Advantages 627 Stored Routine Disadvantages 628 How MySQL Implements Stored Routines 629 www.it-ebooks.info ...

Ngày tải lên: 22/03/2014, 09:20

... works; it’s almost identical to the programs you developed in Chapter 1. So how can you modify this program to allow you to customize the message depending on a value stored in memory? There are, ... time around. To correct your example program, just go back to your editor and reenter the semicolon. Recompile, check for any other errors, and your program is fit to be run again. Horton_735-4C01.fm ... processed in your program. To understand this, you need to know a little bit about memory in your computer, so before you go into your first program, let’s take a quick tour of your computer’s...

Ngày tải lên: 19/03/2014, 14:09

... can be used together to design some basic tools that are quite new to Internet applications but have been accessible to desktop applications for ages. The ability to make a call to the server ... level: Beginner–Intermediate Babin Beginning Ajax with PHP THE EXPERT’S VOICE ® IN OPEN SOURCE Lee Babin Beginning Ajax with PHP From Novice to Professional CYAN MAGENTA YELLOW BLACK PANTONE 123 CV ISBN 1-59059-667-6 9781590596678 53499 6 89253 ... color not accurate spine = 0.638" 272 page count BOOKS FOR PROFESSIONALS BY PROFESSIONALS ® Beginning Ajax with PHP: From Novice to Professional Dear Reader, With the emergence of Ajax, gone...

Ngày tải lên: 15/11/2012, 14:19